In 'Thor,' that was my own hair. I grew it out. But I have naturally curly, blonde hair, so I'll never look like that. By the time I got to 'The Avengers,' I had come off two other films, which required me to have it very short. So I dyed it again and it was long enough to use a part of my hairline.

Actors in any capacity, artists of any stripe, are inspired by their curiosity, by their desire to explore all quarters of life, in light and in dark, and reflect what they find in their work. Artists instinctively want to reflect humanity, their own and each other's, in all its intermittent virtue and vitality, frailty and fallibility.

Love your life. Because your life is what you have to give.

I personally feel that people feel very reassured by nature because it makes us feel small and that's a good thing for human beings and for society.

The best revenge against bullies is absolutely, resolutely, never to let them change who you are. Know that whatever bullies say or do - it comes from their weakness, not yours.

If the Loki in 'Thor' was about a spiritual confusion - 'Who am I? How do I belong in this world?' - the Loki in 'Avengers' is, 'I know exactly who I am, and I'm going to make this world belong to me.'

You've got to do something, even if it's just to kick-start the day. I use music. And running.